JPS57156011A - Preventive device for sludge extrusion in belt-press type dehydrator - Google Patents
Preventive device for sludge extrusion in belt-press type dehydratorInfo
- Publication number
- JPS57156011A JPS57156011A JP56042837A JP4283781A JPS57156011A JP S57156011 A JPS57156011 A JP S57156011A JP 56042837 A JP56042837 A JP 56042837A JP 4283781 A JP4283781 A JP 4283781A JP S57156011 A JPS57156011 A JP S57156011A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- dehydrator
- extrusion
- belt
- owing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Filtration Of Liquid (AREA)
Abstract
PURPOSE: To provide a function, which detects the extrusion of sludge automaticlly and controls it and prevents a sag of a filter cloth, to a belt-press type dehydrator, by providing protecting boards to prevent the extrusion of the sludge, on which nozzles are arranged facing the filter cloth, to the dehydrator.
CONSTITUTION: There is a possibility of the falling-off of sludge 11 at the end part of a wedge-effect dehydrating zone moving to a belt-press dehydrating zone, owing to the small gap between cloths 1a and 1b. Sensors 17 of photoelectric tube, supersonic, etc.-type are arranged, therefore, to detect forced out sludge, and when the extrusion of the sludge is detected, the dehydrator is stopped for a while and simultaneously, compressed air or water shower is jetted strongly from a jetting device 13 to remove the sludge falled onto the underside cloth 1b so as to start the dehydrator again. Thus the change of running condition by the regular inspections is made possible by checking the records of repeated starts and stops of the dehydrator owing to the falling-off of the sludge, and that enables the control which makes a step forward to a perfectly unmanned automatic running.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56042837A JPS57156011A (en) | 1981-03-24 | 1981-03-24 | Preventive device for sludge extrusion in belt-press type dehydrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56042837A JPS57156011A (en) | 1981-03-24 | 1981-03-24 | Preventive device for sludge extrusion in belt-press type dehydrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57156011A true JPS57156011A (en) | 1982-09-27 |
Family
ID=12647079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56042837A Pending JPS57156011A (en) | 1981-03-24 | 1981-03-24 | Preventive device for sludge extrusion in belt-press type dehydrator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57156011A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61138496U (en) * | 1985-02-20 | 1986-08-28 |
-
1981
- 1981-03-24 JP JP56042837A patent/JPS57156011A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61138496U (en) * | 1985-02-20 | 1986-08-28 |
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